>> ifill: today visitors stopped by a snow-covered memorial to those lost at sandy hook. >> as a parent, i just wanted o come to respect the kids and the adulls. it touched everybody's heart. i just couldn't move forward without coming this morning early, you know, and just saying a prayer. >> we just wanted to come down and show support for the families obviously they will never be the same again. whose holidays will never be. >> ifill: in parts of the country's mid section, the holiday was marked by bad weather. snow was moving from the ozarks through the ohio valley, causing blizzard warnings in indiana and kentucky. sleet, freezing rain caused a 21-car pile-up in oklahoma. and left cars spinning on icy roads all the way into western maryland. >> i tried to back up. i couldn't see. i backed into this little wooden whatever the heck that is, busted out my side of my back light there. now i'm stuck here. >> ifill: farther south parts of the gulf coast were on alert for tornadoes and powerful thunderstorms. but the weather wasn't a problem everywhere. downunderwhere it's summer, christm